C++ AcpiDbSetOutputDestination函数代码示例

ACPI_STATUS
AcpiDbDisplayObjects (
    char                    *ObjTypeArg,
    char                    *DisplayCountArg)
{
    ACPI_WALK_INFO          Info;
    ACPI_OBJECT_TYPE        Type;


    /* Get the object type */

    Type = AcpiDbMatchArgument (ObjTypeArg, AcpiDbObjectTypes);
    if (Type == ACPI_TYPE_NOT_FOUND)
    {
        AcpiOsPrintf ("Invalid or unsupported argument\n");
        return (AE_OK);
    }

    AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);
    AcpiOsPrintf (
        "Objects of type [%s] defined in the current ACPI Namespace:\n",
        AcpiUtGetTypeName (Type));

    AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);

    Info.Count = 0;
    Info.OwnerId = ACPI_OWNER_ID_MAX;
    Info.DebugLevel = ACPI_UINT32_MAX;
    Info.DisplayType = ACPI_DISPLAY_SUMMARY | ACPI_DISPLAY_SHORT;

    /* Walk the namespace from the root */

    (void) AcpiWalkNamespace (Type, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
                AcpiDbWalkForSpecificObjects, NULL, (void *) &Info, NULL);

    AcpiOsPrintf (
        "\nFound %u objects of type [%s] in the current ACPI Namespace\n",
        Info.Count, AcpiUtGetTypeName (Type));

    AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
    return (AE_OK);
}

ACPI_STATUS
AcpiOsWaitCommandReady (
    void)
{
    ACPI_STATUS             Status = AE_OK;


    if (AcpiGbl_DebuggerConfiguration == DEBUGGER_MULTI_THREADED)
    {
        Status = AE_TIME;

        while (Status == AE_TIME)
        {
            if (AcpiGbl_DbTerminateLoop)
            {
                Status = AE_CTRL_TERMINATE;
            }
            else
            {
                Status = AcpiOsAcquireMutex (AcpiGbl_DbCommandReady, 1000);
            }
        }
    }
    else
    {
        /* Force output to console until a command is entered */

        AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);

        /* Different prompt if method is executing */

        if (!AcpiGbl_MethodExecuting)
        {
            AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
        }
        else
        {
            AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
        }

        /* Get the user input line */

        Status = AcpiOsGetLine (AcpiGbl_DbLineBuf,
            ACPI_DB_LINE_BUFFER_SIZE, NULL);
    }

    if (ACPI_FAILURE (Status) && Status != AE_CTRL_TERMINATE)
    {
        ACPI_EXCEPTION ((AE_INFO, Status,
            "While parsing/handling command line"));
    }
    return (Status);
}

void
AcpiDbDisplayResources (
    char                    *ObjectArg)
{
    ACPI_NAMESPACE_NODE     *Node;


    AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
    AcpiDbgLevel |= ACPI_LV_RESOURCES;

    /* Asterisk means "display resources for all devices" */

    if (!ObjectArg || (!strcmp (ObjectArg, "*")))
    {
        (void) AcpiWalkNamespace (ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
            ACPI_UINT32_MAX, AcpiDbDeviceResources, NULL, NULL, NULL);
    }
    else
    {
        /* Convert string to object pointer */

        Node = AcpiDbConvertToNode (ObjectArg);
        if (Node)
        {
            if (Node->Type != ACPI_TYPE_DEVICE)
            {
                AcpiOsPrintf (
                    "%4.4s: Name is not a device object (%s)\n",
                    Node->Name.Ascii, AcpiUtGetTypeName (Node->Type));
            }
            else
            {
                (void) AcpiDbDeviceResources (Node, 0, NULL, NULL);
            }
        }
    }

    AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
}

void
AcpiDbDumpNamespace (
    char                    *StartArg,
    char                    *DepthArg)
{
    ACPI_HANDLE             SubtreeEntry = AcpiGbl_RootNode;
    UINT32                  MaxDepth = ACPI_UINT32_MAX;


    /* No argument given, just start at the root and dump entire namespace */

    if (StartArg)
    {
        SubtreeEntry = AcpiDbConvertToNode (StartArg);
        if (!SubtreeEntry)
        {
            return;
        }

        /* Now we can check for the depth argument */

        if (DepthArg)
        {
            MaxDepth = strtoul (DepthArg, NULL, 0);
        }
    }

    AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);
    AcpiOsPrintf ("ACPI Namespace (from %4.4s (%p) subtree):\n",
        ((ACPI_NAMESPACE_NODE *) SubtreeEntry)->Name.Ascii, SubtreeEntry);

    /* Display the subtree */

    AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
    AcpiNsDumpObjects (ACPI_TYPE_ANY, ACPI_DISPLAY_SUMMARY, MaxDepth,
        ACPI_OWNER_ID_MAX, SubtreeEntry);
    AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
}

static void MsgClaimPci(uintptr_t rcpt, uintptr_t addr, uintptr_t pins)
{
	addr &= 0xffff;
	ACPI_PCI_ID id = { 0, (addr >> 8) & 0xff, (addr >> 3) & 31, addr & 7 };
	log(claim_pci, "claim pci %02x:%02x.%x\n", id.Bus, id.Device, id.Function);

	// Set up whatever stuff to track PCI device drivers in general

	int irqs[4] = {0};
	for (int pin = 0; pin < 4; pin++) {
		if (!(pins & (1 << pin))) continue;

		ACPI_STATUS status = RouteIRQ(&id, 0, &irqs[pin]);
		CHECK_STATUS("RouteIRQ");
		log(claim_pci, "%02x:%02x.%x pin %d routed to IRQ %#x\n",
			id.Bus, id.Device, id.Function,
			pin, irqs[pin]);
	}

	if (pins & ACPI_PCI_CLAIM_MASTER) {
		u64 value;
		AcpiOsReadPciConfiguration(&id, PCI_COMMAND, &value, 16);
		if (!(value & PCI_COMMAND_MASTER)) {
			value |= PCI_COMMAND_MASTER;
			AcpiOsWritePciConfiguration(&id, PCI_COMMAND, value, 16);
		}
	}

	pins = (u64)irqs[3] << 48 | (u64)irqs[2] << 32 | irqs[1] << 16 | irqs[0];

	send2(MSG_ACPI_CLAIM_PCI, rcpt, addr, pins);
	hmod(rcpt, (uintptr_t)pci_device_handles + addr, 0);
	return;

failed:
	send2(MSG_ACPI_CLAIM_PCI, rcpt, 0, 0);
}

static size_t debugger_buffer_pos = 0;

static void debugger_pre_cmd(void) {
	debugger_buffer_pos = 0;
	AcpiGbl_MethodExecuting = FALSE;
	AcpiGbl_StepToNextCall = FALSE;
	AcpiDbSetOutputDestination(ACPI_DB_CONSOLE_OUTPUT);
}

static ACPI_STATUS
AcpiDbStartCommand (
    ACPI_WALK_STATE         *WalkState,
    ACPI_PARSE_OBJECT       *Op)
{
    ACPI_STATUS             Status;


    /* TBD: [Investigate] are there namespace locking issues here? */

    /* AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); */

    /* Go into the command loop and await next user command */


    AcpiGbl_MethodExecuting = TRUE;
    Status = AE_CTRL_TRUE;
    while (Status == AE_CTRL_TRUE)
    {
        if (AcpiGbl_DebuggerConfiguration == DEBUGGER_MULTI_THREADED)
        {
            /* Handshake with the front-end that gets user command lines */

            Status = AcpiUtReleaseMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
            if (ACPI_FAILURE (Status))
            {
                return (Status);
            }
            Status = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
            if (ACPI_FAILURE (Status))
            {
                return (Status);
            }
        }
        else
        {
            /* Single threaded, we must get a command line ourselves */

            /* Force output to console until a command is entered */

            AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);

            /* Different prompt if method is executing */

            if (!AcpiGbl_MethodExecuting)
            {
                AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
            }
            else
            {
                AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
            }

            /* Get the user input line */

            (void) AcpiOsGetLine (AcpiGbl_DbLineBuf);
        }

        Status = AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, WalkState, Op);
    }

    /* AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); */

    return (Status);
}

//.........这里部分代码省略.........

        Status = AcpiDbSleep (AcpiGbl_DbArgs[1]);
        break;

    /* File I/O commands. */

    case CMD_CLOSE:

        AcpiDbCloseDebugFile ();
        break;

    case CMD_LOAD:
        {
            ACPI_NEW_TABLE_DESC     *ListHead = NULL;

            Status = AcGetAllTablesFromFile (AcpiGbl_DbArgs[1],
                ACPI_GET_ALL_TABLES, &ListHead);
            if (ACPI_SUCCESS (Status))
            {
                AcpiDbLoadTables (ListHead);
            }
        }
        break;

    case CMD_OPEN:

        AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
        break;

    /* User space commands. */

    case CMD_TERMINATE:

        AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
        AcpiUtSubsystemShutdown ();

        /*
         * TBD: [Restructure] Need some way to re-initialize without
         * re-creating the semaphores!
         */

        AcpiGbl_DbTerminateLoop = TRUE;
        /*  AcpiInitialize (NULL);  */
        break;

    case CMD_BACKGROUND:

        AcpiDbCreateExecutionThread (AcpiGbl_DbArgs[1], &AcpiGbl_DbArgs[2],
            &AcpiGbl_DbArgTypes[2]);
        break;

    case CMD_THREADS:

        AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
            AcpiGbl_DbArgs[3]);
        break;

    /* Debug test commands. */

    case CMD_PREDEFINED:

        AcpiDbCheckPredefinedNames ();
        break;

    case CMD_TEST:

void
AcpiDbCreateExecutionThreads (
    NATIVE_CHAR             *NumThreadsArg,
    NATIVE_CHAR             *NumLoopsArg,
    NATIVE_CHAR             *MethodNameArg)
{
    ACPI_STATUS             Status;
    UINT32                  NumThreads;
    UINT32                  NumLoops;
    UINT32                  i;
    ACPI_HANDLE             ThreadGate;


    /* Get the arguments */

    NumThreads = STRTOUL (NumThreadsArg, NULL, 0);
    NumLoops = STRTOUL (NumLoopsArg, NULL, 0);

    if (!NumThreads || !NumLoops)
    {
        AcpiOsPrintf ("Bad argument: Threads %X, Loops %X\n", NumThreads, NumLoops);
        return;
    }


    /* Create the synchronization semaphore */

    Status = AcpiOsCreateSemaphore (1, 0, &ThreadGate);
    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Could not create semaphore, %s\n", AcpiFormatException (Status));
        return;
    }

    /* Setup the context to be passed to each thread */

    AcpiGbl_DbMethodInfo.Name = MethodNameArg;
    AcpiGbl_DbMethodInfo.Args = NULL;
    AcpiGbl_DbMethodInfo.Flags = 0;
    AcpiGbl_DbMethodInfo.NumLoops = NumLoops;
    AcpiGbl_DbMethodInfo.ThreadGate = ThreadGate;

    AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);


    /* Create the threads */

    AcpiOsPrintf ("Creating %X threads to execute %X times each\n", NumThreads, NumLoops);

    for (i = 0; i < (NumThreads); i++)
    {
        AcpiOsQueueForExecution (OSD_PRIORITY_MED, AcpiDbMethodThread, &AcpiGbl_DbMethodInfo);
    }


    /* Wait for all threads to complete */

    i = NumThreads;
    while (i)   /* Brain damage for OSD implementations that only support wait of 1 unit */
    {
        Status = AcpiOsWaitSemaphore (ThreadGate, 1, WAIT_FOREVER);
        i--;
    }

    /* Cleanup and exit */

    AcpiOsDeleteSemaphore (ThreadGate);

    AcpiDbSetOutputDestination (DB_DUPLICATE_OUTPUT);
    AcpiOsPrintf ("All threads (%X) have completed\n", NumThreads);
    AcpiDbSetOutputDestination (DB_CONSOLE_OUTPUT);
}

void
AcpiDbExecute (
    NATIVE_CHAR             *Name,
    NATIVE_CHAR             **Args,
    UINT32                  Flags)
{
    ACPI_STATUS             Status;
    ACPI_BUFFER             ReturnObj;


#ifdef ACPI_DEBUG
    UINT32                  PreviousAllocations;
    UINT32                  Allocations;


    /* Memory allocation tracking */

    PreviousAllocations = AcpiDbGetOutstandingAllocations ();
#endif

    AcpiGbl_DbMethodInfo.Name = Name;
    AcpiGbl_DbMethodInfo.Args = Args;
    AcpiGbl_DbMethodInfo.Flags = Flags;

    AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);
    Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, &ReturnObj);

    /*
     * Allow any handlers in separate threads to complete.
     * (Such as Notify handlers invoked from AML executed above).
     */
    AcpiOsSleep (0, 10);


#ifdef ACPI_DEBUG

    /* Memory allocation tracking */

    Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations;

    AcpiDbSetOutputDestination (DB_DUPLICATE_OUTPUT);

    if (Allocations > 0)
    {
        AcpiOsPrintf ("Outstanding: %ld allocations after execution\n",
                        Allocations);
    }
#endif

    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Execution of %s failed with status %s\n",
            AcpiGbl_DbMethodInfo.Pathname, AcpiFormatException (Status));
    }

    else
    {
        /* Display a return object, if any */

        if (ReturnObj.Length)
        {
            AcpiOsPrintf ("Execution of %s returned object %p Buflen %X\n",
                AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer, ReturnObj.Length);
            AcpiDbDumpObject (ReturnObj.Pointer, 1);
        }
    }

    AcpiDbSetOutputDestination (DB_CONSOLE_OUTPUT);
}

void
AcpiDbExecute (
    char                    *Name,
    char                    **Args,
    UINT32                  Flags)
{
    ACPI_STATUS             Status;
    ACPI_BUFFER             ReturnObj;


#ifdef ACPI_DEBUG_OUTPUT
    UINT32                  PreviousAllocations;
    UINT32                  Allocations;


    /* Memory allocation tracking */

    PreviousAllocations = AcpiDbGetOutstandingAllocations ();
#endif

    if (*Name == '*')
    {
        (void) AcpiWalkNamespace (ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
                    AcpiDbExecutionWalk, NULL, NULL);
        return;
    }
    else
    {
        AcpiGbl_DbMethodInfo.Name = Name;
        AcpiGbl_DbMethodInfo.Args = Args;
        AcpiGbl_DbMethodInfo.Flags = Flags;

        ReturnObj.Pointer = NULL;
        ReturnObj.Length = ACPI_ALLOCATE_BUFFER;

        AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);
        Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, &ReturnObj);
    }

    /*
     * Allow any handlers in separate threads to complete.
     * (Such as Notify handlers invoked from AML executed above).
     */
    AcpiOsSleep (0, 10);


#ifdef ACPI_DEBUG_OUTPUT

    /* Memory allocation tracking */

    Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations;

    AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);

    if (Allocations > 0)
    {
        AcpiOsPrintf ("Outstanding: %ld allocations after execution\n",
                        Allocations);
    }
#endif

    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Execution of %s failed with status %s\n",
            AcpiGbl_DbMethodInfo.Pathname, AcpiFormatException (Status));
    }

    else
    {
        /* Display a return object, if any */

        if (ReturnObj.Length)
        {
            AcpiOsPrintf ("Execution of %s returned object %p Buflen %X\n",
                AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer,
                (UINT32) ReturnObj.Length);
            AcpiDbDumpObject (ReturnObj.Pointer, 1);
        }
        else
        {
            AcpiOsPrintf ("No return object from execution of %s\n",
                AcpiGbl_DbMethodInfo.Pathname);
        }
    }

    AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
}

static void
AcpiDbRunRemoteDebugger (
    char                    *BatchBuffer)
{
    ACPI_STATUS             Status;
    char                    *Ptr = BatchBuffer;
    char                    *Cmd = Ptr;


    while (!AcpiGbl_DbTerminateLoop)
    {
        if (BatchBuffer)
        {
            if (*Ptr)
            {
                while (*Ptr)
                {
                    if (*Ptr == ',')
                    {
                        /* Convert commas to spaces */
                        *Ptr = ' ';
                    }
                    else if (*Ptr == ';')
                    {
                        *Ptr = '\0';
                        continue;
                    }

                    Ptr++;
                }

                strncpy (AcpiGbl_DbLineBuf, Cmd, ACPI_DB_LINE_BUFFER_SIZE);
                Ptr++;
                Cmd = Ptr;
            }
            else
            {
                return;
            }
        }
        else
        {
            /* Force output to console until a command is entered */

            AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);

            /* Different prompt if method is executing */

            if (!AcpiGbl_MethodExecuting)
            {
                AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
            }
            else
            {
                AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
            }

            /* Get the user input line */

            Status = AcpiOsGetLine (AcpiGbl_DbLineBuf,
                ACPI_DB_LINE_BUFFER_SIZE, NULL);
            if (ACPI_FAILURE (Status))
            {
                return;
            }
        }

        /*
         * Signal the debug thread that we have a command to execute,
         * and wait for the command to complete.
         */
        AcpiOsReleaseMutex (AcpiGbl_DbCommandReady);

        Status = AcpiOsAcquireMutex (AcpiGbl_DbCommandComplete,
            ACPI_WAIT_FOREVER);
        if (ACPI_FAILURE (Status))
        {
            return;
        }
    }
}

//.........这里部分代码省略.........

    case CMD_OBJECT:
        ACPI_STRUPR (AcpiGbl_DbArgs[1]);
        AcpiDbDisplayObjects (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
        break;

    case CMD_OPEN:
        AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
        break;

    case CMD_OWNER:
        AcpiDbDumpNamespaceByOwner (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
        break;

    case CMD_PREFIX:
        AcpiDbSetScope (AcpiGbl_DbArgs[1]);
        break;

    case CMD_REFERENCES:
        AcpiDbFindReferences (AcpiGbl_DbArgs[1]);
        break;

    case CMD_RESOURCES:
        AcpiDbDisplayResources (AcpiGbl_DbArgs[1]);
        break;

    case CMD_RESULTS:
        AcpiDbDisplayResults ();
        break;

    case CMD_SET:
        AcpiDbSetMethodData (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2], AcpiGbl_DbArgs[3]);
        break;

    case CMD_STATS:
        AcpiDbDisplayStatistics (AcpiGbl_DbArgs[1]);
        break;

    case CMD_STOP:
        return (AE_NOT_IMPLEMENTED);

    case CMD_TABLES:
        AcpiDbDisplayTableInfo (AcpiGbl_DbArgs[1]);
        break;

    case CMD_TERMINATE:
        AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
        AcpiUtSubsystemShutdown ();

        /* TBD: [Restructure] Need some way to re-initialize without re-creating the semaphores! */

        /*  AcpiInitialize (NULL);  */
        break;

    case CMD_THREADS:
        AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2], AcpiGbl_DbArgs[3]);
        break;

    case CMD_TREE:
        AcpiDbDisplayCallingTree ();
        break;

    case CMD_UNLOAD:
        AcpiDbUnloadAcpiTable (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
        break;

    case CMD_EXIT:
    case CMD_QUIT:
        if (Op)
        {
            AcpiOsPrintf ("Method execution terminated\n");
            return (AE_CTRL_TERMINATE);
        }

        if (!AcpiGbl_DbOutputToFile)
        {
            AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
        }

        /* Shutdown */

        /* AcpiUtSubsystemShutdown (); */
        AcpiDbCloseDebugFile ();

        AcpiGbl_DbTerminateThreads = TRUE;

        return (AE_CTRL_TERMINATE);

    case CMD_NOT_FOUND:
    default:
        AcpiOsPrintf ("Unknown Command\n");
        return (AE_CTRL_TRUE);
    }


    /* Add all commands that come here to the history buffer */

    AcpiDbAddToHistory (InputBuffer);
    return (Status);
}

ACPI_STATUS
AcpiDbUserCommands (
    NATIVE_CHAR             Prompt,
    ACPI_PARSE_OBJECT       *Op)
{
    ACPI_STATUS             Status = AE_OK;


    /* TBD: [Restructure] Need a separate command line buffer for step mode */

    while (!AcpiGbl_DbTerminateThreads)
    {
        /* Force output to console until a command is entered */

        AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);

        /* Different prompt if method is executing */

        if (!AcpiGbl_MethodExecuting)
        {
            AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
        }
        else
        {
            AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
        }

        /* Get the user input line */

        (void) AcpiOsGetLine (AcpiGbl_DbLineBuf);

        /* Check for single or multithreaded debug */

        if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
        {
            /*
             * Signal the debug thread that we have a command to execute,
             * and wait for the command to complete.
             */
            Status = AcpiUtReleaseMutex (ACPI_MTX_DEBUG_CMD_READY);
            if (ACPI_FAILURE (Status))
            {
                return (Status);
            }

            Status = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
            if (ACPI_FAILURE (Status))
            {
                return (Status);
            }
        }
        else
        {
            /* Just call to the command line interpreter */

            AcpiDbSingleThread ();
        }
    }

    /*
     * Only this thread (the original thread) should actually terminate the subsystem,
     * because all the semaphores are deleted during termination
     */
    Status = AcpiTerminate ();
    return (Status);
}

ACPI_STATUS
AcpiDbDisplayObjects (
    char                    *ObjTypeArg,
    char                    *DisplayCountArg)
{
    ACPI_WALK_INFO          Info;
    ACPI_OBJECT_TYPE        Type;
    ACPI_OBJECT_INFO        *ObjectInfo;
    UINT32                  i;
    UINT32                  TotalObjects = 0;


    /* No argument means display summary/count of all object types */

    if (!ObjTypeArg)
    {
        ObjectInfo = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_OBJECT_INFO));

        /* Walk the namespace from the root */

        (void) AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
            ACPI_UINT32_MAX, AcpiDbWalkForObjectCounts, NULL,
            (void *) ObjectInfo, NULL);

        AcpiOsPrintf ("\nSummary of namespace objects:\n\n");

        for (i = 0; i < ACPI_TOTAL_TYPES; i++)
        {
            AcpiOsPrintf ("%8u   %s\n", ObjectInfo->Types[i],
                AcpiUtGetTypeName (i));

            TotalObjects += ObjectInfo->Types[i];
        }

        AcpiOsPrintf ("\n%8u   Total namespace objects\n\n",
            TotalObjects);

        ACPI_FREE (ObjectInfo);
        return (AE_OK);
    }

    /* Get the object type */

    Type = AcpiDbMatchArgument (ObjTypeArg, AcpiDbObjectTypes);
    if (Type == ACPI_TYPE_NOT_FOUND)
    {
        AcpiOsPrintf ("Invalid or unsupported argument\n");
        return (AE_OK);
    }

    AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);
    AcpiOsPrintf (
        "Objects of type [%s] defined in the current ACPI Namespace:\n",
        AcpiUtGetTypeName (Type));

    AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);

    Info.Count = 0;
    Info.OwnerId = ACPI_OWNER_ID_MAX;
    Info.DebugLevel = ACPI_UINT32_MAX;
    Info.DisplayType = ACPI_DISPLAY_SUMMARY | ACPI_DISPLAY_SHORT;

    /* Walk the namespace from the root */

    (void) AcpiWalkNamespace (Type, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
        AcpiDbWalkForSpecificObjects, NULL, (void *) &Info, NULL);

    AcpiOsPrintf (
        "\nFound %u objects of type [%s] in the current ACPI Namespace\n",
        Info.Count, AcpiUtGetTypeName (Type));

    AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
    return (AE_OK);
}

void
AcpiDbExecute (
    char                    *Name,
    char                    **Args,
    ACPI_OBJECT_TYPE        *Types,
    UINT32                  Flags)
{
    ACPI_STATUS             Status;
    ACPI_BUFFER             ReturnObj;
    char                    *NameString;


#ifdef ACPI_DEBUG_OUTPUT
    UINT32                  PreviousAllocations;
    UINT32                  Allocations;


    /* Memory allocation tracking */

    PreviousAllocations = AcpiDbGetOutstandingAllocations ();
#endif

    if (*Name == '*')
    {
        (void) AcpiWalkNamespace (ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT,
                    ACPI_UINT32_MAX, AcpiDbExecutionWalk, NULL, NULL, NULL);
        return;
    }
    else
    {
        NameString = ACPI_ALLOCATE (ACPI_STRLEN (Name) + 1);
        if (!NameString)
        {
            return;
        }

        ACPI_MEMSET (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO));

        ACPI_STRCPY (NameString, Name);
        AcpiUtStrupr (NameString);
        AcpiGbl_DbMethodInfo.Name = NameString;
        AcpiGbl_DbMethodInfo.Args = Args;
        AcpiGbl_DbMethodInfo.Types = Types;
        AcpiGbl_DbMethodInfo.Flags = Flags;

        ReturnObj.Pointer = NULL;
        ReturnObj.Length = ACPI_ALLOCATE_BUFFER;

        Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);
        if (ACPI_FAILURE (Status))
        {
            ACPI_FREE (NameString);
            return;
        }

        /* Get the NS node, determines existence also */

        Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname,
            &AcpiGbl_DbMethodInfo.Method);
        if (ACPI_SUCCESS (Status))
        {
            Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, &ReturnObj);
        }
        ACPI_FREE (NameString);
    }

    /*
     * Allow any handlers in separate threads to complete.
     * (Such as Notify handlers invoked from AML executed above).
     */
    AcpiOsSleep ((UINT64) 10);

#ifdef ACPI_DEBUG_OUTPUT

    /* Memory allocation tracking */

    Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations;

    AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);

    if (Allocations > 0)
    {
        AcpiOsPrintf ("0x%X Outstanding allocations after evaluation of %s\n",
                        Allocations, AcpiGbl_DbMethodInfo.Pathname);
    }
#endif

    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Evaluation of %s failed with status %s\n",
            AcpiGbl_DbMethodInfo.Pathname, AcpiFormatException (Status));
    }
    else
    {
        /* Display a return object, if any */

        if (ReturnObj.Length)
        {
            AcpiOsPrintf (
                "Evaluation of %s returned object %p, external buffer length %X\n",
//.........这里部分代码省略.........